Gas-burner.



E. G. VAN ZANDT.

GAS BURNER.

APPLICATION FILED DEC. 14, 1909. RENEWED APR. 19 1912.

1,045,469 Patented Nov. 26, 1912.

have invented certain new and ing.

EDWIN G. VAN ZANDT, OF ST; LOUIS, APPLIANCECOMPANY, OF ST. LOUIS,

MissoURI, assrolvon T0 VAN zann'r ens MISSOURI, A CORPORATION or MIssoURI.

GAS-BURNER.

Specification of Letters Patent.

Patented Nov. as, rare.

Application filed December 14, 1909, Serial No. 533,056. Renewed Apr'i1 19, 1312. Serial No. 691,833.-.

To all whom it may concern.-

Be it known that I, EDWIN G. VAN ZANDT, a citizen of the United States, residing in the city of St. Louis and State of Missouri,

useful Improvements in Gas-Burners, of which the following is a specification.

This invention relates to gas-burners of the kind in which, after the initial burning, the products of an initial burning are retreated to cause a more complete combustion.

The object of this invention is to provide a burner which will gather the products of the initial burningand pass them successively through various conditions of temperature and air sup-ply,

each at some time subjected to the proper conditions for complete and efficient burn: To this end I have provided a burner in which a suitably shaped inverted shell having properly disposed perforations in the top is .placed over a suitable initial burner.

In the accompanying drawing, Figure l a central vertical sectional view of the 1S improved burner. Fig. 2 is a plan of the same. Fig. 3 is a central vertical sectional view of a modification of the invention, and Figs. 4 and 5 are plans of alternate forms of the embodiment shown in Fig. 3.

Similar characters of reference indicate corresponding parts. i

Referring more particularly to the drawings, the improved vided with an initial bu ner 5 having a mixer 6 and the feed-pipe F, all of which are well-known.

In order to cause the products of combustion from this initial burner to be treated to the varying conditions hereinbefore described, an inverted shell or container 8 having a downwardlyprojecting annular flange 9, is placed over the initial burner; and this shell 8 is provided with supporting struts 1O connecting it to the pipe 7, or with any other suitable or desired supporting means. The shell is also provided, at or near the top 11, with suitably arranged outwardly flaring, or sectionally V-shaped, openings or perforations 12, having sharp inwardly projecting annular edges 14. The top part 11 of the shell 8, carrying the perforations 12 may have the approximate shape of a segwhereby the vi; rious constituents-0f the initial burning are oxygen from the air. From ,th .is ignited until the time that burner is shown pro ment of a sphere, as shown in .Figs. 1 and 2; or this part ,may be flat asshoWn in Figs. 3 to 5. Furthermore the shell 8 may have various shapes, as viewed from the instance, the top of the shell-shown in Fig. 3 may be round as shown in Fig. 4, or square, as shown in Fig. 5.

The action of the gas during combustion is as follows: The illuminating or other gas used, passing up the pipe 7, is supplied in the mixer 6 with the proper. air and then passes out at the openings in the burner 5. Hereit is ignited and the prodnets of the combustion, including partially burned and unburned gases, ifany, pass upwardly within the shell .8 and finally out at the perforations 12 and at the lower edge of the flange 9, where they burn with an almost colorless transparentflame which indicates substantially complete combustionf The burning of the gas causes the shell 8 to be very highly heated, and the disposition of the shell and the initial burnenand the configuration oftheburner cause the as or gases to pass radially from the initial urner and'to be spread and intimately mixed with the combustible portions or the products of combustion are completely consumed, they are'subjected to many different changes of temperature and air supply. At some time the best condition for complete combustion is supplied for each and every gas within the shell. In this manner complete combustion, and highest efliciency is attained.

I claim as new: 4 y

1. In a gas-burner, a container entirely open' at the bottom and havingat the top perforations of V-shaped axial section, and an initial burner within the container.

-2. In a gas-burner, a container entirely open at the bottom and having at the top perforations of V-shaped vertical section and an initial burner within the container, said container having its lower edge lower than said burner.

3. In a gas burner, a container entirely open at the bottom, having a plurality of perforations closely adjacent each other, and of substantially the same size, said perforations being outwardly flaring and havproportion of e time the gas top. For

ing sharp inner edges, and an initial burner within the container.

4. In a gas-burner, the combination of a wide open bottomed shell, comprising a top 5 flange, and an initial burner within the shell,v

said container having its flange extending lower than said initial burner, the diameter of said flange being great relative to its height.

10 5. In a gas burner, an initial burner and a shell or container entirely open at the bottom for retaining the combustible gases 1 about said initial provided with a plurality of restricted per- 15 forations at the top ofthe shell of substanburner, said shell being I tia'lly the same size and closely adjacent each other, each of such size as to permit the gradual egress of gases from said burner but to so retard the flow thereof that the gases are caused to shell, said initial burner being within the shell or container. I

In testimony, thatI- claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

EDWIN c. VAN za'un'r;

Witnesses Jos. B. WIDEN, H rRmcK J. GRAY.

burn at the exterior of the 20 

